RYURX vs. RYMMX

Last updated Aug 1, 2026

RYURX (Rydex Inverse S&P 500 Strategy Fund) and RYMMX (Rydex S&P MidCap 400 Pure Value Fund) are both mutual funds - RYURX is a Inverse Equities fund managed by Rydex Funds, while RYMMX is a Small Cap Value Equities fund managed by Rydex Funds. Over the past 10 years, RYURX returned -12.47%/yr vs 9.83%/yr for RYMMX. Their -0.81 correlation means they have often moved in opposite directions in the past. RYURX charges 1.49%/yr vs 2.26%/yr for RYMMX.

Performance

RYURX vs. RYMMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex Inverse S&P 500 Strategy Fund (RYURX) and Rydex S&P MidCap 400 Pure Value Fund (RYMMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RYURX achieves a -6.06% return, which is significantly lower than RYMMX's 17.49% return. Over the past 10 years, RYURX has underperformed RYMMX with an annualized return of -12.47%, while RYMMX has yielded a comparatively higher 9.83% annualized return.

RYURX

• 1D: -1.56%
• 1M: 0.93%
• 6M: -5.19%
• YTD: -6.06%
• 1Y: -12.58%
• 3Y*: -10.49%
• 5Y*: -7.99%
• 10Y*: -12.47%
• ALL TIME*: -10.18%

RYMMX

• 1D: 0.53%
• 1M: 5.59%
• 6M: 12.45%
• YTD: 17.49%
• 1Y: 25.59%
• 3Y*: 10.78%
• 5Y*: 9.75%
• 10Y*: 9.83%
• ALL TIME*: 7.16%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
RYMMX Rydex S&P MidCap 400 Pure Value Fund	$0.00	$0.00	$0.00
RYURX Rydex Inverse S&P 500 Strategy Fund	$0.00	$0.00	$0.00

RYURX vs. RYMMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYURX Rydex Inverse S&P 500 Strategy Fund	-6.06%	-11.41%	-13.04%	-14.56%	17.56%	-24.19%	-24.90%	-22.65%	4.33%	-17.38%
RYMMX Rydex S&P MidCap 400 Pure Value Fund	17.49%	5.11%	3.49%	26.78%	-6.06%	30.05%	5.74%	20.83%	-19.66%	12.28%

Correlation

The correlation between RYURX and RYMMX is -0.54, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	-0.54
Correlation (3Y) Balances recent behavior with more history.	-0.66
Correlation (5Y) Shows whether the relationship held over a longer period.	-0.73
Correlation (10Y) Provides a long-term view across more market conditions.	-0.73
Correlation (All Time) Calculated using the full available price history since Jan 3, 2005	-0.81

Over the past year, the inverse relationship between RYURX and RYMMX has weakened: their correlation has moved from -0.81 to -0.54, meaning they move in opposite directions less often than they have historically.

Return for Risk

RYURX vs. RYMMX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

RYURX

RYURX Risk / Return Rank: 0
RYURX Sharpe Ratio Rank: 0
RYURX Sortino Ratio Rank: 0
RYURX Omega Ratio Rank: 1
RYURX Calmar Ratio Rank: 0
RYURX Martin Ratio Rank: 0

RYMMX

RYMMX Risk / Return Rank: 36
RYMMX Sharpe Ratio Rank: 37
RYMMX Sortino Ratio Rank: 41
RYMMX Omega Ratio Rank: 36
RYMMX Calmar Ratio Rank: 37
RYMMX Martin Ratio Rank: 32

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

RYURX vs. RYMMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Inverse S&P 500 Strategy Fund (RYURX) and Rydex S&P MidCap 400 Pure Value Fund (RYMMX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	RYURX	RYMMX	Difference
Sharpe ratio: Return per unit of total volatility	-0.85	1.20	-2.04
Sortino ratio: Return per unit of downside risk	-1.18	1.84	-3.02
Omega ratio: Gain probability vs. loss probability	0.87	1.22	-0.35
Calmar ratio: Return relative to maximum drawdown	-0.67	1.63	-2.30
Martin ratio: Return relative to average drawdown	-1.21	5.02	-6.23

RYURX vs. RYMMX - Sharpe Ratio Comparison

The current RYURX Sharpe Ratio is -0.85, which is lower than the RYMMX Sharpe Ratio of 1.20. The chart below compares the historical Sharpe Ratios of RYURX and RYMMX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

RYURX vs. RYMMX - Drawdown Comparison

The maximum RYURX drawdown since its inception was -96.72%, which is greater than RYMMX's maximum drawdown of -73.49%. Use the drawdown chart below to compare losses from any high point for RYURX and RYMMX.

Drawdown Indicators

	RYURX	RYMMX	Difference
Max Drawdown Largest peak-to-trough decline	-96.72%	-73.49%	-23.23%
Max Drawdown (1Y) Largest decline over 1 year	-16.08%	-12.54%	-3.54%
Max Drawdown (3Y) Largest decline over 3 years	-38.48%	-25.11%	-13.37%
Max Drawdown (5Y) Largest decline over 5 years	-44.10%	-25.11%	-18.99%
Max Drawdown (10Y) Largest decline over 10 years	-75.17%	-54.43%	-20.74%
Current Drawdown Current decline from peak	-96.63%	0.00%	-96.63%
Average Drawdown Average peak-to-trough decline	-69.05%	-11.90%	-57.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.97%	4.09%	+4.88%

Volatility

RYURX vs. RYMMX - Volatility Comparison

Rydex Inverse S&P 500 Strategy Fund (RYURX) has a higher volatility of 3.38% compared to Rydex S&P MidCap 400 Pure Value Fund (RYMMX) at 3.11%. This indicates that RYURX's price experiences larger fluctuations and is considered to be riskier than RYMMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYURX	RYMMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.38%	3.11%	+0.27%
Volatility (6M) Calculated over the trailing 6-month period	10.05%	11.17%	-1.12%
Volatility (1Y) Calculated over the trailing 1-year period	12.78%	17.21%	-4.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.11%	21.65%	-4.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.11%	24.86%	-6.75%

RYURX vs. RYMMX - Expense Ratio Comparison

RYURX has a 1.49% expense ratio, which is lower than RYMMX's 2.26% expense ratio.

Dividends

RYURX vs. RYMMX - Dividend Comparison

RYURX's dividend yield for the trailing twelve months is around 4.06%, more than RYMMX's 0.16% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RYMMX Rydex S&P MidCap 400 Pure Value Fund	0.16%	0.18%	8.21%	0.48%	17.90%	6.82%	0.05%	0.00%	3.84%	1.94%	0.22%	0.30%
RYURX Rydex Inverse S&P 500 Strategy Fund	4.06%	3.82%	6.78%	2.79%	0.00%	0.00%	0.42%	0.86%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both RYURX and RYMMX in my portfolio?

RYURX and RYMMX have a correlation of -0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RYURX or RYMMX?

RYURX has higher volatility (3.38%) compared to RYMMX (3.11%). In terms of maximum drawdown, RYURX dropped -96.72% vs RYMMX's -73.49%.

Which has better risk-adjusted returns?

RYMMX currently has the higher Sharpe Ratio (1.20 vs -0.85), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.